Figure 5.

Effects of soil overstory history on plant growth. Letters denote significant differences between soil treatments based on Tukey’s Honest Significant Differences post hoc comparisons. (a) At week 1 (n=60), plants grown in a soil with a history of Ws had significantly larger rosette diameters than plants grown in soils with a history of toc1-21 or ztl-30 (P=0.002). (b) In a separate experiment where seeds were not germinated synchronously (n=35), seeds sowed onto a soil with a history of Ws occurrence germinated significantly earlier than seeds sown into soils with a history of toc1-21 or ztl-30 genotypes (P<0.001).